1 /* 2 * Copyright(c) 2011-2016 Intel Corporation. All rights reserved. 3 * 4 * Permission is hereby granted, free of charge, to any person obtaining a 5 * copy of this software and associated documentation files (the "Software"), 6 * to deal in the Software without restriction, including without limitation 7 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 8 * and/or sell copies of the Software, and to permit persons to whom the 9 * Software is furnished to do so, subject to the following conditions: 10 * 11 * The above copyright notice and this permission notice (including the next 12 * paragraph) shall be included in all copies or substantial portions of the 13 * Software. 14 * 15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 20 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 21 * SOFTWARE. 22 * 23 * Authors: 24 * Kevin Tian <kevin.tian@intel.com> 25 * Eddie Dong <eddie.dong@intel.com> 26 * 27 * Contributors: 28 * Niu Bing <bing.niu@intel.com> 29 * Zhi Wang <zhi.a.wang@intel.com> 30 * 31 */ 32 33 #ifndef _GVT_H_ 34 #define _GVT_H_ 35 36 #include "debug.h" 37 #include "hypercall.h" 38 #include "mmio.h" 39 #include "reg.h" 40 #include "interrupt.h" 41 #include "gtt.h" 42 #include "display.h" 43 #include "edid.h" 44 #include "execlist.h" 45 #include "scheduler.h" 46 #include "sched_policy.h" 47 #include "mmio_context.h" 48 #include "cmd_parser.h" 49 #include "fb_decoder.h" 50 #include "dmabuf.h" 51 #include "page_track.h" 52 53 #define GVT_MAX_VGPU 8 54 55 struct intel_gvt_host { 56 struct device *dev; 57 bool initialized; 58 int hypervisor_type; 59 struct intel_gvt_mpt *mpt; 60 }; 61 62 extern struct intel_gvt_host intel_gvt_host; 63 64 /* Describe per-platform limitations. */ 65 struct intel_gvt_device_info { 66 u32 max_support_vgpus; 67 u32 cfg_space_size; 68 u32 mmio_size; 69 u32 mmio_bar; 70 unsigned long msi_cap_offset; 71 u32 gtt_start_offset; 72 u32 gtt_entry_size; 73 u32 gtt_entry_size_shift; 74 int gmadr_bytes_in_cmd; 75 u32 max_surface_size; 76 }; 77 78 /* GM resources owned by a vGPU */ 79 struct intel_vgpu_gm { 80 u64 aperture_sz; 81 u64 hidden_sz; 82 struct drm_mm_node low_gm_node; 83 struct drm_mm_node high_gm_node; 84 }; 85 86 #define INTEL_GVT_MAX_NUM_FENCES 32 87 88 /* Fences owned by a vGPU */ 89 struct intel_vgpu_fence { 90 struct drm_i915_fence_reg *regs[INTEL_GVT_MAX_NUM_FENCES]; 91 u32 base; 92 u32 size; 93 }; 94 95 struct intel_vgpu_mmio { 96 void *vreg; 97 void *sreg; 98 }; 99 100 #define INTEL_GVT_MAX_BAR_NUM 4 101 102 struct intel_vgpu_pci_bar { 103 u64 size; 104 bool tracked; 105 }; 106 107 struct intel_vgpu_cfg_space { 108 unsigned char virtual_cfg_space[PCI_CFG_SPACE_EXP_SIZE]; 109 struct intel_vgpu_pci_bar bar[INTEL_GVT_MAX_BAR_NUM]; 110 }; 111 112 #define vgpu_cfg_space(vgpu) ((vgpu)->cfg_space.virtual_cfg_space) 113 114 #define INTEL_GVT_MAX_PIPE 4 115 116 struct intel_vgpu_irq { 117 bool irq_warn_once[INTEL_GVT_EVENT_MAX]; 118 DECLARE_BITMAP(flip_done_event[INTEL_GVT_MAX_PIPE], 119 INTEL_GVT_EVENT_MAX); 120 }; 121 122 struct intel_vgpu_opregion { 123 bool mapped; 124 void *va; 125 u32 gfn[INTEL_GVT_OPREGION_PAGES]; 126 }; 127 128 #define vgpu_opregion(vgpu) (&(vgpu->opregion)) 129 130 struct intel_vgpu_display { 131 struct intel_vgpu_i2c_edid i2c_edid; 132 struct intel_vgpu_port ports[I915_MAX_PORTS]; 133 struct intel_vgpu_sbi sbi; 134 }; 135 136 struct vgpu_sched_ctl { 137 int weight; 138 }; 139 140 enum { 141 INTEL_VGPU_EXECLIST_SUBMISSION = 1, 142 INTEL_VGPU_GUC_SUBMISSION, 143 }; 144 145 struct intel_vgpu_submission_ops { 146 const char *name; 147 int (*init)(struct intel_vgpu *vgpu, unsigned long engine_mask); 148 void (*clean)(struct intel_vgpu *vgpu, unsigned long engine_mask); 149 void (*reset)(struct intel_vgpu *vgpu, unsigned long engine_mask); 150 }; 151 152 struct intel_vgpu_submission { 153 struct intel_vgpu_execlist execlist[I915_NUM_ENGINES]; 154 struct list_head workload_q_head[I915_NUM_ENGINES]; 155 struct kmem_cache *workloads; 156 atomic_t running_workload_num; 157 struct i915_gem_context *shadow_ctx; 158 union { 159 u64 i915_context_pml4; 160 u64 i915_context_pdps[GEN8_3LVL_PDPES]; 161 }; 162 DECLARE_BITMAP(shadow_ctx_desc_updated, I915_NUM_ENGINES); 163 DECLARE_BITMAP(tlb_handle_pending, I915_NUM_ENGINES); 164 void *ring_scan_buffer[I915_NUM_ENGINES]; 165 int ring_scan_buffer_size[I915_NUM_ENGINES]; 166 const struct intel_vgpu_submission_ops *ops; 167 int virtual_submission_interface; 168 bool active; 169 }; 170 171 struct intel_vgpu { 172 struct intel_gvt *gvt; 173 struct mutex vgpu_lock; 174 int id; 175 unsigned long handle; /* vGPU handle used by hypervisor MPT modules */ 176 bool active; 177 bool pv_notified; 178 bool failsafe; 179 unsigned int resetting_eng; 180 181 /* Both sched_data and sched_ctl can be seen a part of the global gvt 182 * scheduler structure. So below 2 vgpu data are protected 183 * by sched_lock, not vgpu_lock. 184 */ 185 void *sched_data; 186 struct vgpu_sched_ctl sched_ctl; 187 188 struct intel_vgpu_fence fence; 189 struct intel_vgpu_gm gm; 190 struct intel_vgpu_cfg_space cfg_space; 191 struct intel_vgpu_mmio mmio; 192 struct intel_vgpu_irq irq; 193 struct intel_vgpu_gtt gtt; 194 struct intel_vgpu_opregion opregion; 195 struct intel_vgpu_display display; 196 struct intel_vgpu_submission submission; 197 struct radix_tree_root page_track_tree; 198 u32 hws_pga[I915_NUM_ENGINES]; 199 200 struct dentry *debugfs; 201 202 #if IS_ENABLED(CONFIG_DRM_I915_GVT_KVMGT) 203 struct { 204 struct mdev_device *mdev; 205 struct vfio_region *region; 206 int num_regions; 207 struct eventfd_ctx *intx_trigger; 208 struct eventfd_ctx *msi_trigger; 209 210 /* 211 * Two caches are used to avoid mapping duplicated pages (eg. 212 * scratch pages). This help to reduce dma setup overhead. 213 */ 214 struct rb_root gfn_cache; 215 struct rb_root dma_addr_cache; 216 unsigned long nr_cache_entries; 217 struct mutex cache_lock; 218 219 struct notifier_block iommu_notifier; 220 struct notifier_block group_notifier; 221 struct kvm *kvm; 222 struct work_struct release_work; 223 atomic_t released; 224 struct vfio_device *vfio_device; 225 } vdev; 226 #endif 227 228 struct list_head dmabuf_obj_list_head; 229 struct mutex dmabuf_lock; 230 struct idr object_idr; 231 232 struct completion vblank_done; 233 234 u32 scan_nonprivbb; 235 }; 236 237 /* validating GM healthy status*/ 238 #define vgpu_is_vm_unhealthy(ret_val) \ 239 (((ret_val) == -EBADRQC) || ((ret_val) == -EFAULT)) 240 241 struct intel_gvt_gm { 242 unsigned long vgpu_allocated_low_gm_size; 243 unsigned long vgpu_allocated_high_gm_size; 244 }; 245 246 struct intel_gvt_fence { 247 unsigned long vgpu_allocated_fence_num; 248 }; 249 250 /* Special MMIO blocks. */ 251 struct gvt_mmio_block { 252 unsigned int device; 253 i915_reg_t offset; 254 unsigned int size; 255 gvt_mmio_func read; 256 gvt_mmio_func write; 257 }; 258 259 #define INTEL_GVT_MMIO_HASH_BITS 11 260 261 struct intel_gvt_mmio { 262 u8 *mmio_attribute; 263 /* Register contains RO bits */ 264 #define F_RO (1 << 0) 265 /* Register contains graphics address */ 266 #define F_GMADR (1 << 1) 267 /* Mode mask registers with high 16 bits as the mask bits */ 268 #define F_MODE_MASK (1 << 2) 269 /* This reg can be accessed by GPU commands */ 270 #define F_CMD_ACCESS (1 << 3) 271 /* This reg has been accessed by a VM */ 272 #define F_ACCESSED (1 << 4) 273 /* This reg has been accessed through GPU commands */ 274 #define F_CMD_ACCESSED (1 << 5) 275 /* This reg could be accessed by unaligned address */ 276 #define F_UNALIGN (1 << 6) 277 /* This reg is saved/restored in context */ 278 #define F_IN_CTX (1 << 7) 279 280 struct gvt_mmio_block *mmio_block; 281 unsigned int num_mmio_block; 282 283 DECLARE_HASHTABLE(mmio_info_table, INTEL_GVT_MMIO_HASH_BITS); 284 unsigned long num_tracked_mmio; 285 }; 286 287 struct intel_gvt_firmware { 288 void *cfg_space; 289 void *mmio; 290 bool firmware_loaded; 291 }; 292 293 #define NR_MAX_INTEL_VGPU_TYPES 20 294 struct intel_vgpu_type { 295 char name[16]; 296 unsigned int avail_instance; 297 unsigned int low_gm_size; 298 unsigned int high_gm_size; 299 unsigned int fence; 300 unsigned int weight; 301 enum intel_vgpu_edid resolution; 302 }; 303 304 struct intel_gvt { 305 /* GVT scope lock, protect GVT itself, and all resource currently 306 * not yet protected by special locks(vgpu and scheduler lock). 307 */ 308 struct mutex lock; 309 /* scheduler scope lock, protect gvt and vgpu schedule related data */ 310 struct mutex sched_lock; 311 312 struct drm_i915_private *dev_priv; 313 struct idr vgpu_idr; /* vGPU IDR pool */ 314 315 struct intel_gvt_device_info device_info; 316 struct intel_gvt_gm gm; 317 struct intel_gvt_fence fence; 318 struct intel_gvt_mmio mmio; 319 struct intel_gvt_firmware firmware; 320 struct intel_gvt_irq irq; 321 struct intel_gvt_gtt gtt; 322 struct intel_gvt_workload_scheduler scheduler; 323 struct notifier_block shadow_ctx_notifier_block[I915_NUM_ENGINES]; 324 DECLARE_HASHTABLE(cmd_table, GVT_CMD_HASH_BITS); 325 struct intel_vgpu_type *types; 326 unsigned int num_types; 327 struct intel_vgpu *idle_vgpu; 328 329 struct task_struct *service_thread; 330 wait_queue_head_t service_thread_wq; 331 332 /* service_request is always used in bit operation, we should always 333 * use it with atomic bit ops so that no need to use gvt big lock. 334 */ 335 unsigned long service_request; 336 337 struct { 338 struct engine_mmio *mmio; 339 int ctx_mmio_count[I915_NUM_ENGINES]; 340 } engine_mmio_list; 341 342 struct dentry *debugfs_root; 343 }; 344 345 static inline struct intel_gvt *to_gvt(struct drm_i915_private *i915) 346 { 347 return i915->gvt; 348 } 349 350 enum { 351 INTEL_GVT_REQUEST_EMULATE_VBLANK = 0, 352 353 /* Scheduling trigger by timer */ 354 INTEL_GVT_REQUEST_SCHED = 1, 355 356 /* Scheduling trigger by event */ 357 INTEL_GVT_REQUEST_EVENT_SCHED = 2, 358 }; 359 360 static inline void intel_gvt_request_service(struct intel_gvt *gvt, 361 int service) 362 { 363 set_bit(service, (void *)&gvt->service_request); 364 wake_up(&gvt->service_thread_wq); 365 } 366 367 void intel_gvt_free_firmware(struct intel_gvt *gvt); 368 int intel_gvt_load_firmware(struct intel_gvt *gvt); 369 370 /* Aperture/GM space definitions for GVT device */ 371 #define MB_TO_BYTES(mb) ((mb) << 20ULL) 372 #define BYTES_TO_MB(b) ((b) >> 20ULL) 373 374 #define HOST_LOW_GM_SIZE MB_TO_BYTES(128) 375 #define HOST_HIGH_GM_SIZE MB_TO_BYTES(384) 376 #define HOST_FENCE 4 377 378 /* Aperture/GM space definitions for GVT device */ 379 #define gvt_aperture_sz(gvt) (gvt->dev_priv->ggtt.mappable_end) 380 #define gvt_aperture_pa_base(gvt) (gvt->dev_priv->ggtt.gmadr.start) 381 382 #define gvt_ggtt_gm_sz(gvt) (gvt->dev_priv->ggtt.vm.total) 383 #define gvt_ggtt_sz(gvt) \ 384 ((gvt->dev_priv->ggtt.vm.total >> PAGE_SHIFT) << 3) 385 #define gvt_hidden_sz(gvt) (gvt_ggtt_gm_sz(gvt) - gvt_aperture_sz(gvt)) 386 387 #define gvt_aperture_gmadr_base(gvt) (0) 388 #define gvt_aperture_gmadr_end(gvt) (gvt_aperture_gmadr_base(gvt) \ 389 + gvt_aperture_sz(gvt) - 1) 390 391 #define gvt_hidden_gmadr_base(gvt) (gvt_aperture_gmadr_base(gvt) \ 392 + gvt_aperture_sz(gvt)) 393 #define gvt_hidden_gmadr_end(gvt) (gvt_hidden_gmadr_base(gvt) \ 394 + gvt_hidden_sz(gvt) - 1) 395 396 #define gvt_fence_sz(gvt) (gvt->dev_priv->num_fence_regs) 397 398 /* Aperture/GM space definitions for vGPU */ 399 #define vgpu_aperture_offset(vgpu) ((vgpu)->gm.low_gm_node.start) 400 #define vgpu_hidden_offset(vgpu) ((vgpu)->gm.high_gm_node.start) 401 #define vgpu_aperture_sz(vgpu) ((vgpu)->gm.aperture_sz) 402 #define vgpu_hidden_sz(vgpu) ((vgpu)->gm.hidden_sz) 403 404 #define vgpu_aperture_pa_base(vgpu) \ 405 (gvt_aperture_pa_base(vgpu->gvt) + vgpu_aperture_offset(vgpu)) 406 407 #define vgpu_ggtt_gm_sz(vgpu) ((vgpu)->gm.aperture_sz + (vgpu)->gm.hidden_sz) 408 409 #define vgpu_aperture_pa_end(vgpu) \ 410 (vgpu_aperture_pa_base(vgpu) + vgpu_aperture_sz(vgpu) - 1) 411 412 #define vgpu_aperture_gmadr_base(vgpu) (vgpu_aperture_offset(vgpu)) 413 #define vgpu_aperture_gmadr_end(vgpu) \ 414 (vgpu_aperture_gmadr_base(vgpu) + vgpu_aperture_sz(vgpu) - 1) 415 416 #define vgpu_hidden_gmadr_base(vgpu) (vgpu_hidden_offset(vgpu)) 417 #define vgpu_hidden_gmadr_end(vgpu) \ 418 (vgpu_hidden_gmadr_base(vgpu) + vgpu_hidden_sz(vgpu) - 1) 419 420 #define vgpu_fence_base(vgpu) (vgpu->fence.base) 421 #define vgpu_fence_sz(vgpu) (vgpu->fence.size) 422 423 struct intel_vgpu_creation_params { 424 __u64 handle; 425 __u64 low_gm_sz; /* in MB */ 426 __u64 high_gm_sz; /* in MB */ 427 __u64 fence_sz; 428 __u64 resolution; 429 __s32 primary; 430 __u64 vgpu_id; 431 432 __u32 weight; 433 }; 434 435 int intel_vgpu_alloc_resource(struct intel_vgpu *vgpu, 436 struct intel_vgpu_creation_params *param); 437 void intel_vgpu_reset_resource(struct intel_vgpu *vgpu); 438 void intel_vgpu_free_resource(struct intel_vgpu *vgpu); 439 void intel_vgpu_write_fence(struct intel_vgpu *vgpu, 440 u32 fence, u64 value); 441 442 /* Macros for easily accessing vGPU virtual/shadow register. 443 Explicitly seperate use for typed MMIO reg or real offset.*/ 444 #define vgpu_vreg_t(vgpu, reg) \ 445 (*(u32 *)(vgpu->mmio.vreg + i915_mmio_reg_offset(reg))) 446 #define vgpu_vreg(vgpu, offset) \ 447 (*(u32 *)(vgpu->mmio.vreg + (offset))) 448 #define vgpu_vreg64_t(vgpu, reg) \ 449 (*(u64 *)(vgpu->mmio.vreg + i915_mmio_reg_offset(reg))) 450 #define vgpu_vreg64(vgpu, offset) \ 451 (*(u64 *)(vgpu->mmio.vreg + (offset))) 452 #define vgpu_sreg_t(vgpu, reg) \ 453 (*(u32 *)(vgpu->mmio.sreg + i915_mmio_reg_offset(reg))) 454 #define vgpu_sreg(vgpu, offset) \ 455 (*(u32 *)(vgpu->mmio.sreg + (offset))) 456 457 #define for_each_active_vgpu(gvt, vgpu, id) \ 458 idr_for_each_entry((&(gvt)->vgpu_idr), (vgpu), (id)) \ 459 for_each_if(vgpu->active) 460 461 static inline void intel_vgpu_write_pci_bar(struct intel_vgpu *vgpu, 462 u32 offset, u32 val, bool low) 463 { 464 u32 *pval; 465 466 /* BAR offset should be 32 bits algiend */ 467 offset = rounddown(offset, 4); 468 pval = (u32 *)(vgpu_cfg_space(vgpu) + offset); 469 470 if (low) { 471 /* 472 * only update bit 31 - bit 4, 473 * leave the bit 3 - bit 0 unchanged. 474 */ 475 *pval = (val & GENMASK(31, 4)) | (*pval & GENMASK(3, 0)); 476 } else { 477 *pval = val; 478 } 479 } 480 481 int intel_gvt_init_vgpu_types(struct intel_gvt *gvt); 482 void intel_gvt_clean_vgpu_types(struct intel_gvt *gvt); 483 484 struct intel_vgpu *intel_gvt_create_idle_vgpu(struct intel_gvt *gvt); 485 void intel_gvt_destroy_idle_vgpu(struct intel_vgpu *vgpu); 486 struct intel_vgpu *intel_gvt_create_vgpu(struct intel_gvt *gvt, 487 struct intel_vgpu_type *type); 488 void intel_gvt_destroy_vgpu(struct intel_vgpu *vgpu); 489 void intel_gvt_release_vgpu(struct intel_vgpu *vgpu); 490 void intel_gvt_reset_vgpu_locked(struct intel_vgpu *vgpu, bool dmlr, 491 unsigned int engine_mask); 492 void intel_gvt_reset_vgpu(struct intel_vgpu *vgpu); 493 void intel_gvt_activate_vgpu(struct intel_vgpu *vgpu); 494 void intel_gvt_deactivate_vgpu(struct intel_vgpu *vgpu); 495 496 /* validating GM functions */ 497 #define vgpu_gmadr_is_aperture(vgpu, gmadr) \ 498 ((gmadr >= vgpu_aperture_gmadr_base(vgpu)) && \ 499 (gmadr <= vgpu_aperture_gmadr_end(vgpu))) 500 501 #define vgpu_gmadr_is_hidden(vgpu, gmadr) \ 502 ((gmadr >= vgpu_hidden_gmadr_base(vgpu)) && \ 503 (gmadr <= vgpu_hidden_gmadr_end(vgpu))) 504 505 #define vgpu_gmadr_is_valid(vgpu, gmadr) \ 506 ((vgpu_gmadr_is_aperture(vgpu, gmadr) || \ 507 (vgpu_gmadr_is_hidden(vgpu, gmadr)))) 508 509 #define gvt_gmadr_is_aperture(gvt, gmadr) \ 510 ((gmadr >= gvt_aperture_gmadr_base(gvt)) && \ 511 (gmadr <= gvt_aperture_gmadr_end(gvt))) 512 513 #define gvt_gmadr_is_hidden(gvt, gmadr) \ 514 ((gmadr >= gvt_hidden_gmadr_base(gvt)) && \ 515 (gmadr <= gvt_hidden_gmadr_end(gvt))) 516 517 #define gvt_gmadr_is_valid(gvt, gmadr) \ 518 (gvt_gmadr_is_aperture(gvt, gmadr) || \ 519 gvt_gmadr_is_hidden(gvt, gmadr)) 520 521 bool intel_gvt_ggtt_validate_range(struct intel_vgpu *vgpu, u64 addr, u32 size); 522 int intel_gvt_ggtt_gmadr_g2h(struct intel_vgpu *vgpu, u64 g_addr, u64 *h_addr); 523 int intel_gvt_ggtt_gmadr_h2g(struct intel_vgpu *vgpu, u64 h_addr, u64 *g_addr); 524 int intel_gvt_ggtt_index_g2h(struct intel_vgpu *vgpu, unsigned long g_index, 525 unsigned long *h_index); 526 int intel_gvt_ggtt_h2g_index(struct intel_vgpu *vgpu, unsigned long h_index, 527 unsigned long *g_index); 528 529 void intel_vgpu_init_cfg_space(struct intel_vgpu *vgpu, 530 bool primary); 531 void intel_vgpu_reset_cfg_space(struct intel_vgpu *vgpu); 532 533 int intel_vgpu_emulate_cfg_read(struct intel_vgpu *vgpu, unsigned int offset, 534 void *p_data, unsigned int bytes); 535 536 int intel_vgpu_emulate_cfg_write(struct intel_vgpu *vgpu, unsigned int offset, 537 void *p_data, unsigned int bytes); 538 539 void intel_vgpu_emulate_hotplug(struct intel_vgpu *vgpu, bool connected); 540 541 static inline u64 intel_vgpu_get_bar_gpa(struct intel_vgpu *vgpu, int bar) 542 { 543 /* We are 64bit bar. */ 544 return (*(u64 *)(vgpu->cfg_space.virtual_cfg_space + bar)) & 545 PCI_BASE_ADDRESS_MEM_MASK; 546 } 547 548 void intel_vgpu_clean_opregion(struct intel_vgpu *vgpu); 549 int intel_vgpu_init_opregion(struct intel_vgpu *vgpu); 550 int intel_vgpu_opregion_base_write_handler(struct intel_vgpu *vgpu, u32 gpa); 551 552 int intel_vgpu_emulate_opregion_request(struct intel_vgpu *vgpu, u32 swsci); 553 void populate_pvinfo_page(struct intel_vgpu *vgpu); 554 555 int intel_gvt_scan_and_shadow_workload(struct intel_vgpu_workload *workload); 556 void enter_failsafe_mode(struct intel_vgpu *vgpu, int reason); 557 558 struct intel_gvt_ops { 559 int (*emulate_cfg_read)(struct intel_vgpu *, unsigned int, void *, 560 unsigned int); 561 int (*emulate_cfg_write)(struct intel_vgpu *, unsigned int, void *, 562 unsigned int); 563 int (*emulate_mmio_read)(struct intel_vgpu *, u64, void *, 564 unsigned int); 565 int (*emulate_mmio_write)(struct intel_vgpu *, u64, void *, 566 unsigned int); 567 struct intel_vgpu *(*vgpu_create)(struct intel_gvt *, 568 struct intel_vgpu_type *); 569 void (*vgpu_destroy)(struct intel_vgpu *vgpu); 570 void (*vgpu_release)(struct intel_vgpu *vgpu); 571 void (*vgpu_reset)(struct intel_vgpu *); 572 void (*vgpu_activate)(struct intel_vgpu *); 573 void (*vgpu_deactivate)(struct intel_vgpu *); 574 struct intel_vgpu_type *(*gvt_find_vgpu_type)(struct intel_gvt *gvt, 575 const char *name); 576 bool (*get_gvt_attrs)(struct attribute ***type_attrs, 577 struct attribute_group ***intel_vgpu_type_groups); 578 int (*vgpu_query_plane)(struct intel_vgpu *vgpu, void *); 579 int (*vgpu_get_dmabuf)(struct intel_vgpu *vgpu, unsigned int); 580 int (*write_protect_handler)(struct intel_vgpu *, u64, void *, 581 unsigned int); 582 void (*emulate_hotplug)(struct intel_vgpu *vgpu, bool connected); 583 }; 584 585 586 enum { 587 GVT_FAILSAFE_UNSUPPORTED_GUEST, 588 GVT_FAILSAFE_INSUFFICIENT_RESOURCE, 589 GVT_FAILSAFE_GUEST_ERR, 590 }; 591 592 static inline void mmio_hw_access_pre(struct drm_i915_private *dev_priv) 593 { 594 intel_runtime_pm_get(dev_priv); 595 } 596 597 static inline void mmio_hw_access_post(struct drm_i915_private *dev_priv) 598 { 599 intel_runtime_pm_put_unchecked(dev_priv); 600 } 601 602 /** 603 * intel_gvt_mmio_set_accessed - mark a MMIO has been accessed 604 * @gvt: a GVT device 605 * @offset: register offset 606 * 607 */ 608 static inline void intel_gvt_mmio_set_accessed( 609 struct intel_gvt *gvt, unsigned int offset) 610 { 611 gvt->mmio.mmio_attribute[offset >> 2] |= F_ACCESSED; 612 } 613 614 /** 615 * intel_gvt_mmio_is_cmd_accessed - mark a MMIO could be accessed by command 616 * @gvt: a GVT device 617 * @offset: register offset 618 * 619 */ 620 static inline bool intel_gvt_mmio_is_cmd_access( 621 struct intel_gvt *gvt, unsigned int offset) 622 { 623 return gvt->mmio.mmio_attribute[offset >> 2] & F_CMD_ACCESS; 624 } 625 626 /** 627 * intel_gvt_mmio_is_unalign - mark a MMIO could be accessed unaligned 628 * @gvt: a GVT device 629 * @offset: register offset 630 * 631 */ 632 static inline bool intel_gvt_mmio_is_unalign( 633 struct intel_gvt *gvt, unsigned int offset) 634 { 635 return gvt->mmio.mmio_attribute[offset >> 2] & F_UNALIGN; 636 } 637 638 /** 639 * intel_gvt_mmio_set_cmd_accessed - mark a MMIO has been accessed by command 640 * @gvt: a GVT device 641 * @offset: register offset 642 * 643 */ 644 static inline void intel_gvt_mmio_set_cmd_accessed( 645 struct intel_gvt *gvt, unsigned int offset) 646 { 647 gvt->mmio.mmio_attribute[offset >> 2] |= F_CMD_ACCESSED; 648 } 649 650 /** 651 * intel_gvt_mmio_has_mode_mask - if a MMIO has a mode mask 652 * @gvt: a GVT device 653 * @offset: register offset 654 * 655 * Returns: 656 * True if a MMIO has a mode mask in its higher 16 bits, false if it isn't. 657 * 658 */ 659 static inline bool intel_gvt_mmio_has_mode_mask( 660 struct intel_gvt *gvt, unsigned int offset) 661 { 662 return gvt->mmio.mmio_attribute[offset >> 2] & F_MODE_MASK; 663 } 664 665 /** 666 * intel_gvt_mmio_is_in_ctx - check if a MMIO has in-ctx mask 667 * @gvt: a GVT device 668 * @offset: register offset 669 * 670 * Returns: 671 * True if a MMIO has a in-context mask, false if it isn't. 672 * 673 */ 674 static inline bool intel_gvt_mmio_is_in_ctx( 675 struct intel_gvt *gvt, unsigned int offset) 676 { 677 return gvt->mmio.mmio_attribute[offset >> 2] & F_IN_CTX; 678 } 679 680 /** 681 * intel_gvt_mmio_set_in_ctx - mask a MMIO in logical context 682 * @gvt: a GVT device 683 * @offset: register offset 684 * 685 */ 686 static inline void intel_gvt_mmio_set_in_ctx( 687 struct intel_gvt *gvt, unsigned int offset) 688 { 689 gvt->mmio.mmio_attribute[offset >> 2] |= F_IN_CTX; 690 } 691 692 int intel_gvt_debugfs_add_vgpu(struct intel_vgpu *vgpu); 693 void intel_gvt_debugfs_remove_vgpu(struct intel_vgpu *vgpu); 694 int intel_gvt_debugfs_init(struct intel_gvt *gvt); 695 void intel_gvt_debugfs_clean(struct intel_gvt *gvt); 696 697 698 #include "trace.h" 699 #include "mpt.h" 700 701 #endif 702